5
Operating the ToxiRAE II
Turning the Monitor ON
Make sure the Lithium battery is installed.
Hold the button down and release when the
display says “on.” The monitor is now on.
The monitor performs a self-test preceding the
warm-up and zero calibration.
You will see the rmware version displayed briey
(e.g., “F10” means rmware version 1.0). The
current gas concentration reading is displayed.
NOTE: Turn the monitor on in clean ambient
air. Units with rmware version 1.4 are
automatically zeroed at power on. (For rmware
version 1.7, there is no auto-zeroing. After the rmware
version is displayed, there is a 10-second countdown, it
beeps at 1 second, and then it shows the current reading.)
Using the ToxiRAE II
After the monitor is turned on and completes its warm-
up, it is in Monitor Mode. The display shows the current
concentration of the specied gas in ppm.
You may also view exposure analysis—the STEL, TWA, and
PEAK—in Monitor Mode.
From the current gas concentration, press the button to
cycle through each exposure analysis reading. After a
minute of idle time, the monitor automatically returns to the
current gas concentration display from any of the analysis
displays.
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